Forerunner in nuclear power expertise  - TVONS – Forerunner in nuclear power expertise

TVONS – Forerunner in nuclear power expertise

TVO Nuclear Services Oy (TVONS) is a subsidiary of Teollisuuden Voima Oyj (TVO) and provides its clients with the high-quality consultation and maintenance services of the TVO Group, based on more than 30 years of experience and nuclear expertise. Solid professional competence guarantees wide-ranging know-how in demanding maintenance, commissioning, and consultation projects. In addition to extensive nuclear knowledge, TVONS has state-of-the-art special equipment and machinery at its disposal.

Nuclear Power Plant Lifecycle Management

The capacity factors of TVO's Olkiluoto nuclear power plant are top class internationally, and the reliability of energy production is a clear demonstration of our expertise. Long-term experience and continuous development are TVONS’s strengths.

TVONS’s clients include Finnish and foreign nuclear power plants, conventional power plants, energy companies and other sectors of basic industry in Finland, public authorities in various countries, and the EU Commission. We engage in projects and cooperation in Finland (e.g., Olkiluoto) and world-wide in Europe and Russia, for example.


TVONS’s vision is to be an internationally and domestically highly valued and respected company offering nuclear expertise.


TVONS’s business concept is to produce added value for its customers by offering expertise covering the entire life cycle of nuclear power plants.


TVONS’s values are expertise, reliability, and profitability.